
// 字体复用
$font_size_lg: 24px;
$font_size_md: 18px;
$font_size_sm: 14px;

// 颜色复用
$background_red: "red";

// 样式复用 minxin  继承;

@mixin flex_center() {
   display: flex;
   justify-content: center;
   align-items: center;
}

@mixin wh($width: 100%, $height: 100%) {
  width: $width;
  height: $height;
}




// 一像素细线
